fix issue with encoding certain unicode codepoints

test/from.js

@@ -13,10 +13,10 @@ test('from array works', function(assert) {
 })
 
 test('from utf8 works as expected', function(assert) {
-  var buf = binary.from('ƒello 淾淾淾 hello world 淾淾 yep ƒuu 淾 \ud83d\ude04', 'utf8')
+  var buf = binary.from('\ud835\udc00 ƒello 淾淾淾 hello world 淾淾 yep ƒuu 淾 \ud83d\ude04', 'utf8')
     , expect
 
-  expect = [198,146,101,108,108,111,32,230,183,190,230,183,190,230,183,190,32,104,101,108,108,111,32,119,111,114,108,100,32,230,183,190,230,183,190,32,121,101,112,32,198,146,117,117,32,230,183,190,32,0xF0,0x9F,0x98,0x84]
+  expect = [0xf0, 0x9d, 0x90, 0x80, 0x20, 198,146,101,108,108,111,32,230,183,190,230,183,190,230,183,190,32,104,101,108,108,111,32,119,111,114,108,100,32,230,183,190,230,183,190,32,121,101,112,32,198,146,117,117,32,230,183,190,32,0xF0,0x9F,0x98,0x84]
 
   assert.equal(buf.length, expect.length)
   for(var i = 0, len = buf.length; i < len; ++i) {
@@ -26,6 +26,19 @@ test('from utf8 works as expected', function(assert) {
   assert.end()
 })
 
+test('from utf8 works on odd unicode codepoints', function(assert) {
+  var string = '好'
+
+  var expect = [0xe5, 0xa5, 0xbd]
+    , buf = binary.from(string)
+
+  for(var i = 0, len = buf.length; i < len; ++i) {
+    assert.equal(binary.readUInt8(buf, i), expect[i])
+  }
+
+  assert.end()
+})
+
 test('from hex works as expected', function(assert) {
   var buf = binary.from('68656c6c6f20776f726c64c692000a0809', 'hex')
     , expect

typedarray/from.js

@@ -91,6 +91,7 @@ function codepoint_to_bytes(arr, code) {
   }
 
   if(pos) {
+    _byte |= +!!(code & 1) << (7 - pos)
     arr[arr.length] = _byte
   }
 }
@@ -99,6 +100,7 @@ function pad(str) {
   while(str.length < 8) {
     str = '0' + str
   }
+
   return str
 }
 
@@ -127,8 +129,6 @@ function fixed_cca(str, idx) {
   return code
 }
 
-
-
 function from_base64(str) {
   return new Uint8Array(base64.toByteArray(str)) 
 }